CN205461752U - Vent gas treatment system in among acid etching waste liquid electricity chemical treatment - Google Patents
Vent gas treatment system in among acid etching waste liquid electricity chemical treatment Download PDFInfo
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- CN205461752U CN205461752U CN201620196812.2U CN201620196812U CN205461752U CN 205461752 U CN205461752 U CN 205461752U CN 201620196812 U CN201620196812 U CN 201620196812U CN 205461752 U CN205461752 U CN 205461752U
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- caustic soda
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Abstract
Vent gas treatment system in among acid etching waste liquid electricity chemical treatment, including chlorine absorption tank, the tail gas that produces among the acid etching waste liquid electricity chemical treatment lets in chlorine absorption tank, ferrous chloride solution storage tank provides the ferrous chloride for chlorine absorption tank, chlorine absorption tank exhaust tail gas gets into liquid alkali absorption tower, the liquid caustic soda jar adds the liquid caustic soda through installing the device additional to liquid alkali absorption tower, the combustion gas is discharged through discharging the tower after liquid alkali absorption tower is handled, the transport power of tail gas is provided by the main air blower, the main air blower is established at liquid alkali absorption tower and is discharged between the tower, the utility model discloses the further structure that adopts two chlorine absorption tank and biliquid alkali absorption tower to establish ties and set up ensures that the tail gas treatment is abundant. The utility model discloses carrying out the substep to tail gas and handling, the treatment effeciency is high.
Description
Technical field
This utility model relates to industrial waste gas processing technology field, is specifically related to the system processing the tail gas produced in acidic etching waste liquid electrochemical treatment process.
Background technology
The main component of acidic etching waste solution of printed circuit board is copper chloride and sodium chlorate, and etching waste liquor is after electrochemical treatments, and anode electrolytic cell can produce the sour gas such as chlorine.Chlorine is a kind of toxic gas with intense stimulus abnormal smells from the patient, all has great hazardness to human body and environment, and therefore, the tail gas containing chlorine produced in acidic etching waste liquid processing procedure has to pass through process up to standard and could discharge.In prior art, process tail gas and generally use absorption method and absorption process, wherein, absorption method mainly uses activated carbon as tail gas absorption agent, this method purifying rate is high, equipment is simple, it is little to invest, however it is necessary that the frequent activated carbon of replacing, add handling, transport, the working procedure such as replacing, cause cost and working strength increasing；Absorption process is to introduce exhaust gas into absorbing liquid to purify, utilize the chemical property of waste gas, it is dissolved in absorbing liquid, this process operation safe temperature, treatment effeciency are high, cost of investment is low, tail gas containing chlorine can carry out purified treatment, and conventional suction method is high-concentration caustic soda liquid because of absorbing liquid used by it, processes during tail gas easily Crystallization Plugging pipeline, and gas-to-liquid contact is insufficient, treatment effeciency is the highest.
Utility model content
The applicant improves for disadvantages mentioned above of the prior art, it is provided that exhaust treatment system in a kind of acidic etching waste liquid electrochemical treatments, and it carries out substep classification and processes tail gas, and treatment effeciency is high, and stable and reliable operation.
The technical solution of the utility model is as follows:
Exhaust treatment system in acidic etching waste liquid electrochemical treatments, including:
Chlorine absorption groove, the tail gas produced in acidic etching waste liquid electrochemical treatments is connected with the air inlet of chlorine absorption groove by pipeline, and the solution of ferrous chloride in chlorine absorption groove absorbs the chlorine in tail gas and generates iron chloride；
Absorbing by liquid caustic soda tower, the air inlet of absorbing by liquid caustic soda tower is connected by pipeline with the gas outlet of chlorine absorption groove, for absorbing the tail gas discharged in chlorine absorption groove；
Main air blower, the air inlet of main air blower is connected with the gas outlet pipeline of absorbing by liquid caustic soda tower, provides gas conveying power for whole exhaust treatment system；
Exhaust tower, the air inlet of exhaust tower is connected by pipeline with the gas outlet of blower fan, discharges for gas；
Solution of ferrous chloride storage tank, for providing chlorine absorption agent solution of ferrous chloride to chlorine absorption groove；
Liquid caustic soda tank, for providing liquid caustic soda to absorbing by liquid caustic soda tower；
Attachment means, is located between liquid caustic soda tank and absorbing by liquid caustic soda tower, including PH determinator and water pump, measures the pH value of absorbent in absorbing by liquid caustic soda tower according to PH determinator, to absorbing by liquid caustic soda tower by water pump automatic liquid feeding alkali.
Its further technical scheme is:
The quantity of described chlorine absorption groove is two, two chlorine absorption grooves are that cascade is arranged, the tail gas produced in acidic etching waste liquid electrochemical treatments is connected by the air inlet of pipeline and first chlorine absorption groove, the gas outlet of first chlorine absorption groove is connected with the air inlet duct of second chlorine absorption groove, and the gas outlet of second chlorine absorption groove is connected by pipeline with the air inlet of absorbing by liquid caustic soda tower.
The quantity of described absorbing by liquid caustic soda tower is two, two absorbing by liquid caustic soda towers are that cascade is arranged, the air inlet of first absorbing by liquid caustic soda tower is connected by the gas outlet of pipeline and second chlorine absorption groove, the gas outlet of first absorbing by liquid caustic soda tower is connected with the air inlet duct of second absorbing by liquid caustic soda tower, and the gas outlet of second absorbing by liquid caustic soda tower is connected by pipeline with the air inlet of main air blower.
Described absorbing by liquid caustic soda tower is divided into four layers, and bottom is liquid storage vessel, and other three layers is absorbed layer, and each absorbed layer is equipped with spray head, and liquid caustic soda is added to liquid storage vessel by chemicals dosing plant, and liquid storage vessel is that the spray head of each absorbed layer pumps into absorbing liquid.
Each absorbed layer of described absorbing by liquid caustic soda tower is all placed with multiaspect environment protection ball.
Described exhaust treatment system also includes standby fan, and the air inlet of standby fan is connected with the gas outlet pipeline of absorbing by liquid caustic soda tower.
The tail gas produced in described acidic etching waste liquid electrochemical treatments is connected with the air inlet of main air blower by pipeline, connects pipeline and is provided with control valve.
Described chlorine absorption groove is equipped with circulating pump, and the liquid in this chlorine absorption groove is pumped out and is pumped directly in this chlorine absorption groove by circulating pump.
Technique effect of the present utility model:
Described tail gas is used substep classification to process by this utility model, first uses chlorine absorption groove to absorb the chlorine in tail gas, re-uses residue chlorine or other sour gas that chlorine absorption groove discharged by absorbing by liquid caustic soda tower and absorbs, it is ensured that vent gas treatment effect；Double chlorine absorption groove and absorbing by liquid caustic soda tower is used to be arranged in series, it is ensured that tail gas absorption is abundant；Chlorine absorption groove uses circulating pump, it is ensured that gas-to-liquid contact is abundant, improves power treatment effect further；Ferrous chloride is used to can be used as sewage disposal, low cost, energy-conserving and environment-protective as chlorine absorbent, the iron chloride of generation.
Accompanying drawing explanation
Fig. 1 is system structure schematic diagram of the present utility model.
Wherein: 1, chlorine absorption groove；2, absorbing by liquid caustic soda tower；21, liquid storage vessel；22, spray head；3, main air blower；4, exhaust tower；5, solution of ferrous chloride storage tank；6, liquid caustic soda tank；7, attachment means；8, standby fan；9, circulating pump.
Detailed description of the invention
Below in conjunction with the accompanying drawings, detailed description of the invention of the present utility model is described.
See that Fig. 1, exhaust treatment system described in the utility model include:
Chlorine absorption groove 1, the tail gas produced in acidic etching waste liquid electrochemical treatments is connected with the air inlet of chlorine absorption groove 1 by pipeline, and the solution of ferrous chloride in chlorine absorption groove 1 absorbs the chlorine in tail gas and generates iron chloride；
Absorbing by liquid caustic soda tower 2, the air inlet of absorbing by liquid caustic soda tower 2 is connected by pipeline with the gas outlet of chlorine absorption groove 1, for absorbing the tail gas discharged in chlorine absorption groove 1；
Main air blower 3, the air inlet of main air blower 3 is connected with the gas outlet pipeline of absorbing by liquid caustic soda tower 2, provides gas conveying power for whole exhaust treatment system；
Exhaust tower 4, the air inlet of exhaust tower 4 is connected by pipeline with the gas outlet of blower fan 3, discharges for gas；
Solution of ferrous chloride storage tank 5, for providing chlorine absorption agent solution of ferrous chloride to chlorine absorption groove 1；
Liquid caustic soda tank 6, for providing liquid caustic soda to absorbing by liquid caustic soda tower 2；
Attachment means 7, it is located between liquid caustic soda tank 6 and absorbing by liquid caustic soda tower 2, including PH determinator and water pump, the pH value of absorbent in absorbing by liquid caustic soda tower 2 is measured according to PH determinator, to absorbing by liquid caustic soda tower 2 by water pump automatic liquid feeding alkali, chemicals dosing plant 7 belongs to prior art, the automatic medicine adding apparatus being referred in sewage disposal.
Further, this utility model is arranged to biabsorption groove and double absorption column form, the quantity of described chlorine absorption groove 1 and absorbing by liquid caustic soda tower 2 is two, two chlorine absorption grooves 1 are arranged for cascade, two absorbing by liquid caustic soda towers 2 are arranged for cascade, the tail gas produced in acidic etching waste liquid electrochemical treatments is connected by the air inlet of pipeline and first chlorine absorption groove 1, the gas outlet of first chlorine absorption groove 1 is connected with the air inlet duct of second chlorine absorption groove 1, the gas outlet of second chlorine absorption groove 1 is connected by pipeline with the air inlet of first absorbing by liquid caustic soda tower 2.The gas outlet of first absorbing by liquid caustic soda tower 2 is connected with the air inlet duct of second absorbing by liquid caustic soda tower 2, and the gas outlet of second absorbing by liquid caustic soda tower 2 is connected by pipeline with the air inlet of main air blower 3.
Specifically, described absorbing by liquid caustic soda tower 2 is divided into four layers, bottom is liquid storage vessel 21, other three layers is absorbed layer, each absorbed layer is equipped with spray head 22, and liquid caustic soda is added to liquid storage vessel 21 by chemicals dosing plant 7, and liquid storage vessel 21 is that the spray head 22 of each absorbed layer pumps into absorbing liquid, each absorbed layer of absorbing by liquid caustic soda tower 2 is all placed with multiaspect environment protection ball, long-pending to increase absorbent surface.
Described exhaust treatment system also includes that standby fan 8, the air inlet of standby fan 8 are connected with the gas outlet pipeline of absorbing by liquid caustic soda tower 2, when main air blower 3 breaks down, and replaceable use standby fan 8.
The tail gas produced in acidic etching waste liquid electrochemical treatments is connected with the air inlet of main air blower 3 by pipeline, connect pipeline and be provided with control valve, when the tail gas that anode electrolytic cell directly produces, its content has been reached discharge standard and without processing, then directly can have been discharged by this connection pipeline.
So that in chlorine absorption groove 1 fully absorb chlorine, chlorine absorption groove 1 is equipped with circulating pump 9, and the liquid in this chlorine absorption groove 1 is pumped out and is pumped directly in this chlorine absorption groove 1 by circulating pump 9.
Fig. 1 is preferred embodiment of the present utility model, uses biabsorption groove and the design of double absorption column structure, and its method of operation is as follows:
nullUnder the dynamic action of main air blower 3，Solution of ferrous chloride is pumped in chlorine absorption groove 1，The tail gas that anode electrolytic cell produces enters first chlorine absorption groove 1 through piping，Chlorine in tail gas generates iron chloride with ferrous chloride generation oxidation reaction，The tail gas of the discharge in first chlorine absorption groove 1 enters second chlorine absorption groove 1 and fully absorbs chlorine in tail gas，The tail gas choice discharged in second chlorine absorption groove 1 enters first absorbing by liquid caustic soda tower 2，Each absorbed layer that gas enters below tower body and gradually rises up in tower body，The absorbent of tower body bottom sprays into each absorbed layer by the spray head 22 of each absorbed layer，And the sour gas in tail gas is absorbed，Absorbent uses the mixing liquid of liquid caustic soda and water，Tail gas can produce crystal grain through absorbing by liquid caustic soda tower 2 after wherein absorbent contacts，Crystal grain is collected in the liquid storage vessel 21 of bottom，Need periodic cleaning，Multistage filtering structure can be set in liquid storage vessel 21，Filtered and be concentrated at one and periodic cleaning，After two absorbing by liquid caustic soda towers 2，Complete the process of tail gas，Gas after two-stage chlorine absorption groove and absorbing by liquid caustic soda tower process，Drain into next step treatment process by discharge tower 4 or be directly discharged into air.
Wherein, liquid caustic soda in absorbing by liquid caustic soda tower 2 adds employing chemicals dosing plant 7 and realizes automatically adding, when the PH determinator of chemicals dosing plant 7 China records the PH of the liquid storage vessel 21 of absorbing by liquid caustic soda tower 2 less than setting value, then by the water pump in chemicals dosing plant 7, the liquid caustic soda in liquid caustic soda tank 6 being pumped into absorbing by liquid caustic soda tower 2, water pump can use metering water pump.
Above description is to explanation of the present utility model, is not the restriction to utility model, and this utility model limited range sees claim, within protection domain of the present utility model, can make any type of amendment.
Claims (8)
1. exhaust treatment system in acidic etching waste liquid electrochemical treatments, it is characterised in that including:
Chlorine absorption groove (1), the tail gas produced in acidic etching waste liquid electrochemical treatments is connected with the air inlet of chlorine absorption groove (1) by pipeline, and the solution of ferrous chloride in chlorine absorption groove (1) absorbs the chlorine in tail gas and generates iron chloride；
Absorbing by liquid caustic soda tower (2), the air inlet of absorbing by liquid caustic soda tower (2) is connected by pipeline with the gas outlet of chlorine absorption groove (1), is used for absorbing the tail gas discharged in chlorine absorption groove (1)；
Main air blower (3), the air inlet of main air blower (3) is connected with the gas outlet pipeline of absorbing by liquid caustic soda tower (2), provides gas conveying power for whole exhaust treatment system；
Exhaust tower (4), the air inlet of exhaust tower (4) is connected by pipeline with the gas outlet of blower fan (3), discharges for gas；
Solution of ferrous chloride storage tank (5), for providing chlorine absorption agent solution of ferrous chloride to chlorine absorption groove (1)；
Liquid caustic soda tank (6), for providing liquid caustic soda to absorbing by liquid caustic soda tower (2)；
Attachment means (7), is located between liquid caustic soda tank (6) and absorbing by liquid caustic soda tower (2), including PH determinator and water pump, measures the pH value of absorbent in absorbing by liquid caustic soda tower (2) according to PH determinator, to absorbing by liquid caustic soda tower (2) by water pump automatic liquid feeding alkali.
2. exhaust treatment system in the acidic etching waste liquid electrochemical treatments as described in claim 1, it is characterized in that: the quantity of described chlorine absorption groove (1) is two, two chlorine absorption grooves (1) are that cascade is arranged, the tail gas produced in acidic etching waste liquid electrochemical treatments is connected by the air inlet of pipeline and first chlorine absorption groove (1), the gas outlet of first chlorine absorption groove (1) is connected with the air inlet duct of second chlorine absorption groove (1), the gas outlet of second chlorine absorption groove (1) is connected by pipeline with the air inlet of absorbing by liquid caustic soda tower (2).
3. exhaust treatment system in the acidic etching waste liquid electrochemical treatments as described in claim 2, it is characterized in that: the quantity of described absorbing by liquid caustic soda tower (2) is two, two absorbing by liquid caustic soda towers (2) are that cascade is arranged, the air inlet of first absorbing by liquid caustic soda tower (2) is connected by the gas outlet of pipeline and second chlorine absorption groove (1), the gas outlet of first absorbing by liquid caustic soda tower (2) is connected with the air inlet duct of second absorbing by liquid caustic soda tower (2), and the gas outlet of second absorbing by liquid caustic soda tower (2) is connected by pipeline with the air inlet of main air blower (3).
4. exhaust treatment system in the acidic etching waste liquid electrochemical treatments as described in claims 1 to 3 any claim, it is characterized in that: described absorbing by liquid caustic soda tower (2) is divided into four layers, bottom is liquid storage vessel (21), other three layers is absorbed layer, each absorbed layer is equipped with spray head (22), liquid caustic soda is added to liquid storage vessel (21) by chemicals dosing plant (7), and liquid storage vessel (21) is that the spray head (22) of each absorbed layer pumps into absorbing liquid.
5. exhaust treatment system in the acidic etching waste liquid electrochemical treatments as described in claim 4, it is characterised in that: each absorbed layer of described absorbing by liquid caustic soda tower (2) is all placed with multiaspect environment protection ball.
6. exhaust treatment system in the acidic etching waste liquid electrochemical treatments as described in claim 1, it is characterised in that: described exhaust treatment system also includes that standby fan (8), the air inlet of standby fan (8) are connected with the gas outlet pipeline of absorbing by liquid caustic soda tower (2).
7. exhaust treatment system in the acidic etching waste liquid electrochemical treatments as described in claim 1, it is characterized in that: the tail gas produced in described acidic etching waste liquid electrochemical treatments is connected with the air inlet of main air blower (3) by pipeline, connect pipeline and be provided with control valve.
8. exhaust treatment system in the acidic etching waste liquid electrochemical treatments as described in any claim in claims 1 to 3, it is characterized in that: described chlorine absorption groove (1) is equipped with circulating pump (9), the liquid in this chlorine absorption groove (1) is pumped out and is pumped directly in this chlorine absorption groove (1) by circulating pump (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620196812.2U CN205461752U (en) | 2016-03-15 | 2016-03-15 | Vent gas treatment system in among acid etching waste liquid electricity chemical treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620196812.2U CN205461752U (en) | 2016-03-15 | 2016-03-15 | Vent gas treatment system in among acid etching waste liquid electricity chemical treatment |
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| Publication Number | Publication Date |
|---|---|
| CN205461752U true CN205461752U (en) | 2016-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620196812.2U Expired - Fee Related CN205461752U (en) | 2016-03-15 | 2016-03-15 | Vent gas treatment system in among acid etching waste liquid electricity chemical treatment |
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| CN (1) | CN205461752U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109453615A (en) * | 2018-12-19 | 2019-03-12 | 湖北星火化工有限公司 | A kind of processing method of methylsufonyl chloride production tail gas |
| CN109794147A (en) * | 2019-03-20 | 2019-05-24 | 金川集团股份有限公司 | A kind of row pressure chlorine gas safe recycling and processing device |
| CN110107811A (en) * | 2019-05-31 | 2019-08-09 | 惠州市鸿宇泰科技有限公司 | A kind of pipe-line system of alkaline etching liquid production |
| CN110508116A (en) * | 2019-09-19 | 2019-11-29 | 中节能工程技术研究院有限公司 | Waste printed circuit board melting gas cleaning recovery system |
-
2016
- 2016-03-15 CN CN201620196812.2U patent/CN205461752U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109453615A (en) * | 2018-12-19 | 2019-03-12 | 湖北星火化工有限公司 | A kind of processing method of methylsufonyl chloride production tail gas |
| CN109794147A (en) * | 2019-03-20 | 2019-05-24 | 金川集团股份有限公司 | A kind of row pressure chlorine gas safe recycling and processing device |
| CN110107811A (en) * | 2019-05-31 | 2019-08-09 | 惠州市鸿宇泰科技有限公司 | A kind of pipe-line system of alkaline etching liquid production |
| CN110508116A (en) * | 2019-09-19 | 2019-11-29 | 中节能工程技术研究院有限公司 | Waste printed circuit board melting gas cleaning recovery system |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160817 Termination date: 20210315 |